Mantle-support.



No. 660,330. 1 Patented 0M. 23, I900. G. 0. MILLER.

MANTLE SUPPORT.

(Application filed June 12, 1899.)

(No Model.)

Fig. 1'. Fig. 2.

7 L o o o WITNESSES 9 @WMW- UNl TED STATES PATENT OFFICE.

GEORGE O. MILLER, OF NORTH TONAWANDA, NEW YORK.

MANTLE-SUPPORT.

SPECIFICATION forming part of Letters Patent No. 660,330, dated October 23. 1900.

Application filed June 12, 1899. Serial No. 720,152. (No model.)

To all w/tom it nut/y concern.-

Be it known that I, GEORGE O. MILLER, acitizen of the United States, residing atNorth Tonawanda, in the county of Niagara and State of New York, ha einventcd certain new and useful Improvements in Mantle-Supports, of which the following is a specification.

Myinvention relates to a means for augmenting or increasing the volume of air admitted to a device employing a gaseous illuminating or heating agent and by admitting currents of air within the combustion-chamber beyond or above the igniting point or points and permitting it to intimately mingle with the partially-consumed gas, thereby insuring more perfect and complete combustion, increasing the illumination or heating, and decreasing the quantity of gas consumed; and the object of the invention is to provide a simple, cheap, and easily-operated device of that character.

For a full understanding of the merits and advantages of the invention reference is to be had to the accompanying drawings and the following description.

The invention is susceptible to various changes in the form, proportion, and minor details of construction without departing from the principle or sacrificing any of the advantages thereof, and to a full disclosure of the invention an adaptation thereofis employed in connection with a gas-burner having an incandescent mantle, as shown in the accompanying drawings, in which Figure 1 represents a side elevation of a gas-burner constructed in accordance with my invention. Fig. 2 is a longitudinal section on or about line a a, Fig. 1. Fig. 3 isa longitudinal section through the perforated tubular mantle-support. Fig. 4 is an enlarged detached view of the lower end of the perforated tubular m antle-support.

For the purpose of thoroughly explaining my invention I have shown in the accompanying drawings and described in the following description a gas-burner constructed in accordance therewith.

In referring to the drawings for the details of the adaptation of my invention therein illustrated like numerals designate like parts.

The burner-body 1 is provided with the usual mantle-base 2,-having a woven-wire or gauze top 3 and the chimney-support 4.

The adaptation of my invention employed in connection with the gas-burner illustrated in the drawings consists in placing or mounting atube 5, having a series of perforations or openings 6, above the mantle-base, with its lower end extending through the gauze top 3 and seating in the upper extreme of a lower curvedtube 7, which passes through the body and extends into com munication with the surrounding atmosphere, said upper tube 5 serving as a support for the mantle and also as an air-conductor for carrying air into the interior of the mantle above the ignitingpoint, the air circulating through the lower tube into the upper tube, and thence through the perforations into the interior of the mantle to mingle with the partially-consumed gas, thus rendering the combustion more thorough and perfect and greatly intensifying the illumination The circulation of cool air through the tube also serves to prevent the burning or intense heating of the same.

To control the volume of air admitted through the tube, the lower end of the lower tube is provided with a shut-0E device, the preferable form of which is shown in Fig. 4, in which the lower end of the tube is provided with a slot 8, and a cap 9 is mounted upon said end and is adjustable longitudinally thereon to provide means to entirely close or partially close the opening formed by the slot.

The tube 5 may be constructed of metal,

clay, kaolin, or other suitable material. I

prefer, however, to form it of metal and place around it a loosely-encircling supplementary tube or mantle 10, of suitable refractory material, which will become incandescent when the burner is lighted and serve to conceal or render the tube invisible through the outer mantle. This su pplementary tube owing to its closely-woven character serves to more thoroughly distribute the air-current, and thereby greatly increase and intensify the brightness of the light.

The metal tube may in lieu of. the supplementary mantle be coated or covered with a view when the burner is lighted, although I prefer the supplementary tube or mantle 10, as it conceals the tube and materially increases the brilliancy when the burner is lighted.

It is obvious that the invention can be employed with advantage in many illuminating or heating devices other than gas-burners, and I therefore reserve the right to its employment for any purpose for which it may be adapted.

I claim as my invention- 1. A gas-burner comprising a body, a mantle-support, an incandescent mantle mounted upon said support; said support being tubular in form and having its upper portion extending into the interior of the mantle and provided with perforations through which air escapes above the burner-body and its lower portion curving through the body and a regulating device upon the lower exterior end of the support, as set forth.

2. A gas-burner comprising a body, a mantle support and an incandescent mantle mounted upon said support; said support being tubular in form and extending intothe in teriorof the mantle and having perforations through which air escapes above the burnerbody and an exterior device for regulating and controlling the admission of air to said tube, as set forth.

3. A gas-burner com prising a body, a lower tube mounted in said body with the lower end extending below and curving outwardly through the exterior of the body and its upper end extending above, an upper tube provided with openings or perforations and having its lower end mounted on the upper extreme of the lower tube, a mantle placed around and supported upon the upper tube and a regulating device mounted upon the lower end of the lower tube, as set forth.

4. A gas-burner comprising a body, a tubular center mantle-support having perforations, a supplementary mantle of closelywoven refractory material encircling said support, a main mantle of larger circumference mounted upon the support and encircling said support and the supplementary mantle and a device for regulating the admission of air to said tubular center mantle-support.

5. A gas-burner comprising a body, a lower tube mounted in said body with its upper end extending above and its lower end projecting below and having a slot or opening, a cap mounted upon the lower end and longitudinally adjustable thereon to close or partially close the slot or opening. i

6. The combination with a heating-burner- 8. The combination with a heating-burner and an incandescent mantle or hood heated therefrom, of a tubular support for said mantle or hood located centrally therein and extending throughout the entire length thereof, with its lower end extending through the burner-body into communication with the surrounding atmosphere.

9. A gas-burner comprising a body, a tubular center mantle-support, a supplementary mantle encircling said support with its upper end upon the top thereof, a main mantle of larger circumference mounted upon the support and encircling said support and the supplementary mantle and means for preventing overheating of said support.

10. A gas-burner comprising a body, a supplementary mantle, a main mantle loosely encircling the supplementary mantle and a tubular mantle-support located centrally Within the supplementary mantle and extending throughout its length; the lower end of the support extending into communication with the surrounding atmosphere, as set forth.

GEORGE O. MILLER.

Witnesses:

L. M. BILLINGS, Gr. A. NEUBAuER. 

